/* Copyright (c) 2021, National University of Defense Technology. All rights reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *     http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#include <stdio.h>
#include "vec_io.h"

namespace YHAMG
{

void Vec_Read(const char* filename, Vector& x)
{
	FILE* f = fopen(filename, "r");

	int n;

	fscanf(f, "%d", &n);

	double* xv = new double[n];

	for (int i = 0; i < n; ++i)
		fscanf(f, "\n%lg", &xv[i]);

	fclose(f);

	x.Free();
	x.size = n;
	x.values = xv;
}

void Vec_Write(const char* filename, const Vector& x)
{
	int n = x.size;
	double* xv = x.values;

	FILE* f = fopen(filename, "w");

	fprintf(f, "%d", n);

	for (int i = 0; i < n; ++i)
		fprintf(f, "\n%20.16g", xv[i]);

	fclose(f);
}

}